CS212EDW16中文资料

FeaturesLine1ControllerLineNS-ARTnReceives/TransmitsDataonOnlyTwoLeadsnLowCurrentConsumptionnHighNoiseImmunitynSabotageSurveilledLoopInputPackageOptionsCS212SecurityDetectorSerial-AddressableReceiver/TransmitterCS212DescriptionTheS-ARTisa16pincircuitdesignedfordatatransmissiononatwo-leadcable.Thecircuitisspe-ciallydevelopedforalarmsystemswhereitisdesiredtoidentifyeachdetectorindividually.Therecanbeupto30S-ARTcircuits/detectorsonthesame2-leadcable.ThiscabletransmitsbothDCsupplytotheS-ARTandinformationto/fromtheS-ART.TheS-ARTworksontheprinciplebywhichanaddressissentonthelinecableandtheS-ARTwhichrec-ognizestheaddressthencarriesouttheorderwhichcan,inprinciple,betwothings:1.TransmitdatafromthelinecabletotheS-ART'stwooutputsOUT0andOUT1.2.AnswertheS-ARTcontrollerwiththeconditionofthe2inputsIN0andIN1orIN2-3.Thelinesignalisdividedinto3lev-elsinordertogiveatimesignalforsynchronizingandadatasignalcontainingaddresses,ordersetc.Typicalsignallevelsforthethreelevelswouldbe15V,7.5Vand0V.BlockDiagram1OUT02345678A4A3A2A1A0IN1IN0161514131211109OUT1DSRIN2IN3VDDDATAOUTGndLINE16LPDIP&16LSOWide1Amethodbywhich,inprinciple,thesystemcanbeextendedtoaninfinitenumberofS-ARTisshownontheblockdiagram.Thecontrollerscansthein/out-putsofanumberoflines,eachwithamaximumof30S-ARTs.CK1VDATA1DATA0CherrySemiconductorCorporation2000SouthCountyTrail,EastGreenwich,RI02818Tel:[phone]Fax:[phone]Email:[e-mail]:¨Rev.4/21/99LeadTemperatureSoldering:WaveSolder(throughholestylesonly)............................................10Sec.max260ûCPeakReflow(SMDstylesonly)............................................60Secmax.above183ûC,230ûCPeakStorageTemperatureRange,TS................................................................-65to150ûCMaximumOperatingJunctionTemperature,TJ........................................................125¡CElectricalCharacteristics:TA=25¡C,unlessotherwisespecified.PARAMETERTESTCONDITIONSMINTYPMAXUNITCS2122AbsoluteMaximumRatingsOperatingTemperatureRange,TA-4085¡CDeviceCurrentIDDOutputsunloaded0.470.80mANotAddressedLineVoltage=0-15V,VDD=15VDeviceCurrentIDDIN0,IN1areOpen3.555.50mAPower-Up-ModeIN2,IN3areActive(5corr.addr.bits)CP4-CP5VDD=15VDeviceCurrentIDDIN2,IN3notActive6.249.64mAAddressed,LineOutputIN0,IN1areOpenTransistorActiveVDD=15VDeviceCurrentIDDIN2,IN3notActive1.842.86mAAddressed(4corr.addr.bits)IN0,IN1areOpenLineOutputTransistorNotActiveVDD=15VOutputVoltageLowLevelVDD=10-15V1.2VOut0,Out1,DSRISINK=1mAOutputsinkCurrent1.0mAOut0,Out1,DSROutputVoltageHighLevel14VOut0,Out1,DSRLeakageCurrentVOUT=14V30µAOut0,Out1,DSRInputVoltageLevelLowVDD=10-15V30%VDDVA0-A4,IN0,IN1HighVDD=10-15V70%VDDVInputCurrentIN0,IN1=GndVDD=18V150850µAPower-UpMode(4corr.addr.bits)InputCurrentVDD=18V20µAA0-A4,IN0,IN1NotAddressedPositiveTriggerThresholdVP,CClockComparator11.011.712.4VVoltageVdd=15VVP,DDataComparator4.65.76.6VNegativeTriggerVNCVDD=15VClockComparator10.210.911.6VThresholdVoltageVNCVDD=15V,DataComparator3.44.35.2VHysteresisVoltageVDD=15V0.70.8VClock/DataComp.SaturationVoltageForVDD=15V,IC=50mA1VLineOutputDriverSaturationVoltageForVDD=15V,IC=10mA0.4VLineOutputDriverLeakageCurrentVLINE=0-18V,VDD=18V±16µAFortheLineOutputLineSignalFreq.VDD=15V±1V020kHzRise/Fall-TimeLineSignal0.25250.00µsPARAMETERTESTCONDITIONSMINTYPMAXUNITCS2123ElectricalCharacteristics:TA=25¡C,unlessotherwisespecified.PackagePinDescriptionPACKAGEPIN#PINSYMBOLFUNCTION1OUT0Output(opencollector)fromS-ART.2A4Addressinput.MustbeconnectedtoVDDorGndaccordingtotherelevantaddresscode.3A3Addressinput.MustbeconnectedtoVDDorGndaccordingtotherelevantaddresscode.4A2Addressinput.MustbeconnectedtoVDDorGndaccordingtotherelevantaddresscode.5A1Addressinput.MustbeconnectedtoVDDorGndaccordingtotherelevantaddresscode.6A0Addressinput.MustbeconnectedtoVDDorGndaccordingtotherelevantaddresscode.7IN1InputtoS-ART.8IN0InputtoS-ART.9LINESignalleadinthelinecable.10GndZeroleadinthelinecable.11DATAOUTOutputfromtheS-ART,whichisactiveintheREAD-mode.TransmitsdatafromS-ARTtoline.12VDDSupplyvoltagetotheS-ART.Thevoltageisderivedfromthelinesignal.13IN3Sabotagesurveilledloop(shortingandbreaking).14IN2Sabotagesurveilledloop(shortingandbreaking).15DSRDataSetReady.Output(opencollector)fromtheS-ARTwhichisactiveduringWRITE-mode,whenOUT0andOUT1change.16OUT1Output(opencollector)fromS-ART.Turn-OnTimeFor1.0µsLineOutputDriverTurn-OffTimeFor1.0µsLineOutputDriverLineVoltageVL(Note1)028VLoopCurrentIN2,IN30.10.5mAAlarmConditionIN2-IN315k½LoopOpenAlarmConditionIN2-IN3530k½LoopShortedNote1:Thecircuitshallfunctioninthecorrectwayonlybetween0and18VDC.Datadrivermustnotturnonwhenlinevoltageisabove18V.4CS212Serial-AddressableReceiverTransmitterS-ARTADDRESSCODINGThecircuitiscodedonaddressinputsA0-A4.Inordertoreducethepowerconsumptiontothecircuitstheyareinpowerdownmodeformostofthetime.Onlywhenacircuitisaddressedistheamounttothatparticularcircuitincreased.READWhenaS-ARThasrecognizedanaddresswiththecorrectparityandthenreceivedaREAD-orderthecontrollerbecomespassive.TheS-ARTinquestionwillthensendda